D. LemkeElsevier B.V.Infrared PhysicsD. Johannsmann and D. Lemke, "IR resonant filters for the wavelength region 30-200 μm," Infrared Phys. 26, 215-216 (1986).D. Johannsmann and D. Lemke, Infrared Phys. , 1986, 26 , 215
Wavelength (Å) 0.71073 0.71073 0.71073 Crystal system Monoclinic Monoclinic Monoclinic Space group P21/c P21/c P21/c Unit cell dimensions (Å) a = 15.0073 (19) a = 9.6909 (6) a = 11.042 (1) b = 5.5014 (7) b = 5.6435 (3) b = 11.7744 (8) c =...
(peak)inanIRspectrumisspecifiedinunitsofwavenumbers()νν=1λ∵∆E=hν∴E∝ν∵ν=∴∆E=cλhcλ(λ=wavelengthincm)(E=energy)(ν=frequencyofradiation)Ch.2-7Ch.2-8 CharacteristicIRabsorptionsIntensity:s=strong,m=medium,w=weak,v=variableGroupFreq.Range(cm-1)IntensityAlkylC–H(stretching...
The Michelson-type interferometer has a maximum path difference of 10 cm and uses a liquid-N(2)-cooled HgCdTe detector, which covers the spectral region from 650 to 1250 cm(-1). Spectral intervals containing CO(2), HNO(3), and ozone have been modeled with a line-by-line radiative-...
Infrared light can be further divided into three categories: Near infrared (NIR), mid infrared (MIR), and far infrared (FIR). NIR has the shortest wavelength with higher wavenumbers while FIR has the longest wavelength with lower wavenumbers. ...
IR Wavelength 850 nm Video Main Stream 50 Hz: 25 fps (1920 × 1080, 1280 × 720) 60 Hz: 30 fps (1920 × 1080, 1280 × 720) Sub-Stream 50 Hz: 25 fps (640 × 480, 640 × 360) 60 Hz: 30 fps (640 × 480, 640 × 360) Video Compressio...
However, due to the high phonon energy at approximately 1100 cm−1, silica-based fibres suffer from strong material absorption in the mid-IR range above 2.2 μm1. Extending the emission wavelength coverage of fibre lasers further into the mid-IR region, especially above 3 μm, is...
region for sample containment; (b) contacting the hydrophilic region ofthe membrane with a sample volume; (c) drying the sample volume on the membrane;(d) exposing the sample volume on the membrane to an infrared beam comprising awavelength in the spectral range of 4000-400 cm-1 or any ...
Foranorganicchemist,theregionofinterestforIRspectroscopyisofwavelengthfrom2.5to15μm,whichisnormallyexpressedasthewavenumberrange4000-666cm-1,sincethisistheregioninwhichthemostdiagnosticallyusefulvibrationsoccur.对有机化学家来讲，他们主要对吸收(xīshōu)波长在2.5-15μm,或者说波数在4000-666cm-1范围内内...
a Top panel: transmission through the bare active region in a typical multipass geometry, at room-temperature: a clear ISB transition at about 955 cm−1 is measured. Bottom panel: room-temperature reflectance spectra under FTIR-coupled microscope of the p = 4.2 μm sample. The black...